How to use like operator to find birthday (day)

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SQL-Server-2012

I have database. It is having table which call UserProfile. It contain column birthday.
Each and everyday I want to find the birthdays of users
Eg User birthday
Saman 1990/08/23
Rajith 1987/05/08
Piumi 1989/08/23
kumara 1989/04/06

I want to find the users who are born on 23rd of August(08)

SQL

select *
from
UserProfile
where BirthDay like&'%/08/23'

But is is not working.

Posted 8-Sep-15 9:25am

chamaxx

Updated 8-Sep-15 9:26am

v2

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PIEBALDconsult 8-Sep-15 15:41pm

LIKE operates on strings, and you should never store dates as strings. Store them as DATEs and use DATEPART instead.

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Wendelius · Answer 1 · 2015-09-08T10:18:00

If I understand your situation correctly I would recommend not using a character column for storing dates. Instead it should be defined as a date column.

When the column is a date column, it's easy to extract the day or the month. For example

SQL

SELECT *
FROM UserProfile
WHERE DATEPART(day, BirthDay) = 23
AND  DATEPART(month, BirthDay) = 8

But the key is to use proper data type for the column.

If you really can't change the data type, then you can use the LIKE example in solution 1 or use CONVERT function to convert the type from varchar to date. If the date format you use is YYYY/MM/DD then something like the following should work

SQL

SELECT *
FROM UserProfile
WHERE DATEPART(day, CONVERT(date, BirthDay, 111)) = 23
AND  DATEPART(month, CONVERT(date, BirthDay, 111)) = 8

But as said, using date column is the proper way to go.

**Zoltán Zörgő** · Answer 2 · 2015-09-08T09:48:00

You can do it, if you like, but you have to be aware of the date format. You need to convert the date to string in a specific format, than you can use LIKE operator.

SQL

select * from
(SELECT convert(varchar, getdate(), 111) as BirthDate) as T
where T.BirthDate like '%/09/08'

See date formats: https://anubhavg.wordpress.com/2009/06/11/how-to-format-datetime-date-in-sql-server-2005/[^]
In SQL-2012 you have even more at hands: https://msdn.microsoft.com/en-us/library/hh213505.aspx[^]

How to use like operator to find birthday (day)

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